The Lesser Antillean Bullfinch in the Virgin Islands
338 THE WILSON BULLETIN . Vol. 89, No. 2 successful feeding attempts. We noted, however, that aggressive and non-aggressive sandpipers had similar feeding attempt rates. According to Recher and Recher (Wilson Bull. 81:14%154, 1969) a point is reached when the frequency and intensity of aggression among sandpipers declines as they be- come more concentrated in an area of abundant food. The adult sandpipers we watched may have reached this point but the juveniles may not have-possibly because they were less efficient than adults (see Recher, Ecology 47: 393-403, 1966) in catching prey and therefore had a higher threshhold for lowering aggression. We thank D. G. Ainley, J. P. Hailman, and M. A. Howe for their helpful comments. This report is part of the results we have obtained in studies of migratory shorebirds funded by the Migratory Bird and Habitat Research Station, U.S. Fish and Wildlife Service, Contract No. 14-16-0008-687.-B~1~~ A. HARRINCTON AND SARAII GROVES,& ano-‘ met Bird Observatory, Manomet, MA 02345. (Present Address SG: Dept. of Zoology, Univ. of British Columbia, Vancouver, B.C.). Accepted 9 Apr. 1976. Herring Gull eating bayberry.-Several studies of the Herring Gull (Larus argen- tutus) (Harris, Ibis 107:43-53, 1965; Threlfall, C an. Field-Nat. 82:176-180, 1968; Tin- bergen, The Herring Gulls’ World, 1960) h ave demonstrated the omnivorous and opportunistic qualities of its diet. In addition to the well known animal and garbage com- ponents, Herring Gulls consume grasses, grain, and blueberries (Vaccineurn angustifolium) when available (Threlfall, Nature in Wales 11:67-73, 1968; Davis, Br.
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